Bag



1.1 is a perspective view of a bag, showing my new design;

1.2 is a front view thereof;

1.3 is a rear view thereof;

1.4 is a right view thereof;

1.5 is a left view thereof;

1.6 is a top view thereof; and

1.7 is a bottom view thereof.

The broken lines shown in the drawings of the bag represent stitching and form part of the claimed design. 

CLAIM The ornamental design for a bag, as shown and described. 